Fact Book
14877. Science Facts
One of the best ways of cleaning an infected wound, used before the days of antibiotics and now with infections that antibiotics can't treat, is to put maggots into it to eat the rotting flesh.
14888. Scientific Instruments & Appliances
Scientific Instruments & Appliances
commutator
is an instrument to change of reverse the direction of an electric current. in dynamo used to convert the alternating current into direct current.
14889. Scientific Instruments & Appliances
Scientific Instruments & Appliances
computer
is a technical device designed to find instantaneous solutions of huge and complex calculation based on the information already fed.
14901. Scientific Instruments & Appliances
Scientific Instruments & Appliances
mariner's compass
is an apparatus for determining direction, graduated to indicate 33 directions. the "n" point on the dial indicates north pole and the "s" point, south pole.
14921. Scientific Instruments & Appliances
Scientific Instruments & Appliances
spring balance
is used to measure the mass of a body. it is preferred only when quick but approximate determinations are to be carried out.
14924. Scientific Instruments & Appliances
Scientific Instruments & Appliances
stroboscope
is an instrument used for viewing the objects moving rapidly with a periodic motion and to see them as if they were at rest.
My Account / Test History
Fact
The only bone in the human body not connected to another is the hyoid, a V-shaped bone located at the base of the tongue between the mandible and the voice box. Its function is to support the tongue and its muscles.
.. More >>
Home
My Account
English Test
Verbal Reasoning
GK Quiz
Grammar Test